Question about 2003 Mitsubishi Montero Sport
According to the service literature I read, the 2003 Montero Sport with the 3.0 or 3.5 L engine does not have O2 sensors listed even in the maintenance schedule. The 2.4 L engine has it on the exhaust manifold though.
However, the following lists the par, though for before or after the catalytic converter:
I think that $250 to $300 is reasonable if the Oxygen sensors are stuck in there with rust and the threads are preserved by the technician. Oxygen Sensor replacement can be tricky.
Good luck on this repair.
REMOVAL & INSTALLATION
Wait at least 90 seconds after the negative
battery cable is disconnected to prevent possible deployment of the air bag.
M10 mounting bolts 36 ft. lbs. (49 Nm). starting from the middle and working
3.0L and 3.5L Engines
flatness and/or damage.
3.0L engines and 22 ft. lbs. (29 Nm) on 3.5L engines.
Posted on Oct 07, 2010
Testimonial: "Thanks, it gave me some assurances the work was reasonable. I am pretty handy, this would have been new territory. Others made it sound VERY simple."
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Posted on Jan 02, 2017
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